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Calorimeter vs Energize: catalog facts
Calorimeter	Energize
Free Free and open source under the GPL-3.0-or-later licence.	Free Free and open source under the AGPL-3.0 licence.
Android	Android
Personal food database built from the foods you actually eat Scanning of purchased foods for quick entry	Uses Open Food Facts, USDA and Swiss food databases Barcode scanning and custom foods
Little documentation beyond the store description Android only	Pre-1.0 software still in active development Android is the main supported platform
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: AGPL-3.0-only
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.